From WikiChip
Editing multiplexer
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Latest revision | Your text | ||
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|+ 4:1 Mux | |+ 4:1 Mux | ||
|- | |- | ||
− | ! Sel< | + | ! Sel<0> !! Sel<1> !! I<0> !! I<1> !! I<2> !! I<3> !! Q |
|- | |- | ||
| 0 || 0 || 0 || X || X || X || 0 | | 0 || 0 || 0 || X || X || X || 0 | ||
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Alternatively, a 4:1 Mux can be built out of basic gates. Its function is shown below: | Alternatively, a 4:1 Mux can be built out of basic gates. Its function is shown below: | ||
− | Q = <math>(A \land \overline S_0 \land \overline S_1) \lor (B \land S_0 \land | + | Q = <math>(A \land \overline S_0 \land \overline S_1) \lor (B \land \overline S_0 \land S_1) \lor (C \land S_0 \land \overline S_1) \lor (D \land S_0 \land S_1)</math> |
Where A, B, C, and D are the four inputs. Q is the output. | Where A, B, C, and D are the four inputs. Q is the output. |